../ dmsp_15_ephemeris_20221019.txt 22-Jun-2023 00:53 109659 dmsp_16_ephemeris_20221019.txt 22-Jun-2023 00:53 109597 dmsp_17_ephemeris_20221019.txt 22-Jun-2023 00:53 109561 dmsp_18_ephemeris_20221019.txt 22-Jun-2023 00:53 109541